Circuit arrangement for a coupling arrangement for four-wire through-connection in telecommunications switching systems, in particular telephone switching systems

摘要

For the interconnection of a multiplicity of line circuits through a one-stage switching matrix with matrix-shaped two-wire through-connecting switching points disposed in rows and columns, the switching matrix has the same number of rows and columns as the number of line circuits present. Each line circuit is in this case connected to the allocated line in relation to one direction and to the allocated column in relation to the other direction.